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Shell question

Jacoolo

New member
Does anybody here know what is following Shell option for?

Options > Surfaces Extension > Extend Excluded Surfaces

thx in advance
 
View attachment 4575


Here is a simple example that will cover both options but I assume your familiar with the first. In the picture above you shell the part but you only want to shell the larger cylinder you use the first option. You select the surfaces of the smaller cylinder up to where it meets the larger one, the larger cylinder is shelled but the smaller one isn't so the inner surface between the two is extended.


View attachment 4576 View attachment 4577


The second option would be used if you want to shell the smaller cylinder but not the larger. You select the surfaces of the larger cylinder but this time the surface that is being extended is the excluded surface of the large cylinder.


View attachment 4578View attachment 4579
 
I agree also. I've only seen examples with the first option when creating partial shells. PTC coverspartial shellin there updates but they don't discuss the two options and don't show the second example only the first.
 

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